钢丝绳的破断拉力
参考答案：
数根同类型同规格的钢丝绳作拉伸试验时，导致这些钢丝绳破断的最小拉力称为该钢丝的破断拉力。
---Could you tell us how long asleep?
---For about two hours.
A．has he fallen
B．he has fallen
C．has he been
D．he has been
不能把字符串Hello!赋给数组b的语句是( )。
A．char b[10]=('H','e','1','1','o','!'; B．char b[10]; b="Hello!";C．char b[10]; strcpy(b,"Hello!"); D．char b[10]="Hello!";
